Sectional switchboard frame



H. KOCH. SECTIONAL SWITCHBOARD FRAME. APPLICATION FILED JUNE 17, 192i. RENEWED AUG. 12.1922.

A TTORNEYJ Patented Oct. 24, 1922.

Patented oer aa tees. l 1,432,8(58 UNHT@ TATES PATENT @FFH@EO HENRY KOCH, OF JAMAICA, NEW YORK, ASSIGNOR TO DICTOGRAPH PRODUCTS CORPORATION, A CORPORATION OF VIRGINIA.

SEG'IIONAL SWITCHBOARD FRAME.

Application filed June 17, 1921, Serial No. 478,451. Renewed August 12, 1922. Serial Ito. 581,492.

To all whom it may concern: slide and be held against upward movement. Be it known that I, HENRY KOCH, a citi- Screws 9 secure the tongues 8 to the ends of zen of the United States, residing at Jathe plates 7 to hold the latter securely in maica, in the county of Queens and State place upon the ledges and to prevent separaof New York, have invented certain new and tion of the opposite end plates. Spaced useful Improvements in Sectional Switchtongues or lugs 10 extending downwardly board Frames, of which the following is a from the lower edge of each end plate are full, clear, and exact description. ofl'set inwardly at their juncture with the This invention relates to sectional switchbody of the plate an amount approximately 10 board constructions for telephonic appaequal to the thickness of the plate, and then ratus and has for an object to provide a extend parallel therewith so as to abut the frame construction which can be easily and inner face of a lower end plate, and screws quickly assembled, which is simple, rigid 11 secure these tongues or lugs upon the and inexpensive, the parts of which may be upper endsto the next lower end plates. 11

15 stamped from sheet material, and which A transmitter and coil board 12 is secured parts will have a maximum possible standby screws 13 to tongues14 that extend from ardization so as to reduce to a minimum the the forward edge of an upper frame 15. The number of dies and special parts required upper frame comprises two angula end for various sizes of switchboards. members which are connected at their upper 20 Other objects and advantages will be apfaces by a plate 16 having a length suitable parent from the following description and for any given size of switchboard. The the-novel features of the invention will be upper frame is coupled to the upper edge particularly pointed out in claims. of the uppermost end plates by coupling In the drawing: plates 17 and screws 18. The endplates are 25 Fig. 1 is an inside elevation of a frame each provided with apertures 19, 20, 21, 22

constructed in accordance with this invenand 23 to facilitate the assembly of parts to tion; I be supportedby the frame, and each end Fig. 2 is an end elevation of the same. plate has the necessary apertures for the re- The invention is particularly intended for ception of screws 11 and 18 so that the end I application to the switchboards of stations plates can be-built up by superposing as devised for intercommunicating telephone many sections as desired from standard systems, and the illustrated embodiment is parts. A stri 24 may be secured to the adapted for that purpose. bottom arm of the bottom panel by screws Key panels 1 which support the switch 25 and serves as a support for some of the keys (not shown) are channel-shaped with necessary switchboard parts. Tongues 26 the arms 2 of the channels extending horimay extend inwardly from each end plate zontally or lengthwise of the switchboard, and support astrip (not shown) that carries and having a length corresponding to a cable terminals. r

given size of switchboard. End plates 3 of It will be seen that with this construction,

to sheet metal are provided at their upper and the swltchboard'can be made in various sizes lower edges and adjacent the forward edge and mainly with standard parts. The key corners with inturned tongues or lugs 4 panels, board 12, strip 24 and plates 7 and which extend within and parallel with the 16 can be cut to correspond with different arms of the channels of the key plates and sizes and the end frames and upper frame 45 are secured thereto by screws 5. Each end 15 can be used in all sizes of switchboards, plate is also provided with lugs 6 struck inso that a minimum number of dies and' wardly in the same plane which form a special parts will be necessary. Practically ledge on the inner face. A switch supportthe entire frame can be made by stamping ing plate 7 extends between each pair of end from sheet material so that the expense is 60 plates that are connected to a key panel and low. The parts are relatively simple, and rests upon the ledges formed by the lugs 6. easily assembled, and when assembled the A tongue or lug 8 is struck out of the face frame is very rigid. The end plates and key of each end plate and bent over upon the panels can be superposed to provide the deswitch supportingplate 7 to form with the sired number of key panels of any length.

W5 ledges a groove in which the plate 7' may It is believed that the manner of assembly 1 .10

will be understood from the detailed description without further explanation.

It will be obvious that various changes 1n the details and arrangements of'parts herein the same plane to form ledges, a switch supporting plate adapted to fit between the end plates and rest upon the ledges, lugs struck from the end plates and overlying the switch supporting plate to hold the latter against the ledges but permitting sliding movement in a plane parallel with the ledges and means removably inter-engaging with the last named lugs and switch supporting plate for preventing sliding movement of the latter upon the ledges.

for telephonic apparatus, a unit comprising a key panel having a channel sha e, end plates having inturned lugs attache to the arms of the channel, said end plates also in the same plane to form ledges, a switch supporting plate adapted to fit between the end plates and rest upon the ledges, and 111 struck from the end plates and overlying t e switch supporting plate to hold the latter against the led es but permitting sliding movement in a p ane parallel with the ledges, and means removably inter-engaging with the last named lugs and switch supporting plate for preventin sliding movement of the latter upon the le ges,'each end plate having depending lugs for en agement with the corresponding end plate 0 a lower unit.

3. Ina sectional switchboard construction a key panel having a channel shape, end plates having inturned lugs attached to the arms of the channel, said end plates also having a plurality of struck-out projections .in the same lane to form ledges, a switch supporting p ate adapted to fit between the end plates and rest upon the ledges, and lugs struck from the end plates and overlying the switch supporting plate to hold the latter against the ledges but permitting sliding movement in a plane arallel with the led es, and means remova lyinter-en aging 2. In a sectionalswitchboard construction having .a plurality of struckout projections for telephonic apparatus, a unit comprising 1,4s2,ees

for telephonic apparatus, a unit comprising a key panel, end plates having inturned lugs for attachment to the panel, said end plates also having struck-out projections on their inner faces for forming ledges, a switch supporting plate resting and sliding upon the ledges, said end plates having struck out lugs for holding the switch supporting plate against the ledges but permitting sliding movement thereon, and fastening means between the switch supporting plate and the lugs for preventing sliding movement of the former with respect to the latter.

5. In a sectional switchboard construction for telephonic apparatus, a unit comprising a key panel, end plates, means for attaching the panel to the end plates, each end plate havin on its inner face struck out projections 1n difi'erent planes, a switch supporting plate disposed between the end plates w1th its ends in the space between the projections in 'difierent planes, and means for "attaching the switch supporting plate to the end plates.

6. In a sectional switchboard construction for telephonic apparatus, a unit comprising a key panel, end plates, means for at- -taching the panel to the end plates, each end plate having on its inner -face struck out projections in different planes, a switch supporting plate disposed between the end plates with its ends in the space between the projections in different planes, and means for attaching the switch supporting plate to the end plates, each end plate having extending lugs for engagement with the corre-' sponding end plate of a lower unit.

7. In a sectional switchboard construction for telephonic apparatus, a unit comprising a key panel, end plates, means for attaching the panel to the end plates, each .end plate havin on its inner face struck out projections in difierent lanes, a switch supporting plate disposed between the end plates with its ends in the space between the projections'in diiferent 1planes, and means for at- :taching the switc supporting plate to the end plates, each end plate having depending lugs with terminals ofl'set laterally an amount a proximately equal to the thickness 116 of the en plates for engaging with the side faces of'a lower unit when superposed thereon in a multi-panel construction.

8. In a sectional switchboard construction for telephonic apparatus, aunit compris- 120 ing a key panel, end plates havin inturned: lugs for attachment to the pane said end plates also having struck-out projections on their inner faces for forming led s, a switch supportingplate resting and siding upon the ledges, said end plates having struck over lugs for holdin the switch supporting plate against the le ges but permitting sliding movement thereon, and fastening means between the switch supporting plate and the lugs for preventing sliding movement of the former with respect to the latter, each end plate having'extending lugs for engagement with the corresponding end plate of a lower unit.

9. In a sectional switchboard construction for telephonic apparatus, a unit comprising a key panel having a channel shape with the arms of the channel extending horizontally and rearwardly from the face thereof, end

plates having inturned horizontally disposed lugs with their faces abutting the faces of the arms of the panel channel, means for securing the lugs to the arms of the channel, and a switch supporting plate disposed between the end plates, said end plates having struck out portions extending from their inner faces for supporting the ends of the switch supporting plate.

10. In a. sectional switchboard construct tion for telephonic apparatus, a unit comprising a key panel having a channel shape with the arms of the channel extending hori zontally and rearwardly from the face thereof, end plates having inturned horizontally disposed lugs with their faces abutting the faces of the arms of the panel channel, means for securing the lugs to the arms of the channel, -and a switch supporting plate disposed between the end plates, said end plates ha-v- Y ing struck-out portions extending from their inner faces for supporting the ends of the switch supporting plate, each end plate having extending lugs for engagement with the corresponding end plate of a lower unit.

11. In a sectional switchboard construction for telephonic apparatus, a unit comrisin a ke anel havin ,a channel shape iivith the arm s 5f the chann el extending horizontally and rearwardly from the face thereof, end plates having inturned horizontally disposed lugs with their faces abutting the faces of the arms of the panel channel, means for securing the lu s to the arms of the channel, and a switc supporting plate disposed between the end plates, said end plates havin struck-out portions extending from their inner faces for supporting the ends of the switch supporting plate, each end plate having depending lugs with terminals offset latera ly an amount approximately equal to the thickness of the end plates for engaging with the side faces of a lower unit when superposed thereon in a multi-panel construction.

12. In a sectional switchboard construction for telephonic apparatus, end frame plates each having inwardly bent integral lugs for attachment to a key panel, struckout lugs upon the inner faces to form ledges for receiving and mounting a switch supporting plate, and a struck-out tongue extending from the inner face in spaced relation to the ledges for overhanging the switch supporting plate.

13. In a sectional switchboard construction for telephonic apparatus, end frame plates each having inwardly bent integral lugs for attachment to a key panel, struck out lugs upon the inner faces to form ledges for receiving and mounting aswitch supporting plate, a struck-out tongue extending from the inner face in spaced relation to the ledges for overhanging the switch supporting plate, and vertically extending lugs for connecting each end plate to an adjacent end plate in multi-panel construction.

14. In a sectional switchboard construction for telephonic apparatus, end frame plates each having inwardly bent integral lugs for attachment to a key panel, struck out lugs upon the inner faces to form ledges for receiving and mounting a switch supporting plate, a struck-out tongue extending from the inner face in spaced relation to the ledges for overhangin ing plate, and vertical y extending integral lugs ofi'set with respect to the body of the end plate an amount approximately equal to the thickness of the end plate for connecting each end plate to an adjacent end plate in -.multi-panel construction.

In witness whereof, I hereunto subscribe my signature.

HENRY KooH. 

